code: def test_tensor_life_4(self, new_portal):
      portal, tensor = new_portal(4)
      assert portal.tensor is tensor
  
      phony = portal.blue()
      assert portal.orange(phony).data_ptr() == tensor.data_ptr()
      assert portal.orange(phony).data_ptr() == tensor.data_ptr()
      portal.blue()
  
file_path: pytorch/test/distributed/pipeline/sync/skip/test_portal.py
imports: import pytest
  import torch
  from torch.distributed.pipeline.sync.dependency import fork, join
  from torch.distributed.pipeline.sync.skip.portal import Portal
  from torch.distributed.pipeline.sync.stream import default_stream
  from torch.testing._internal.common_utils import run_tests
label_desc: Use image node_id 6 for calling the TestTensorLife obj's underlying member method code with example usage: obj.test_tensor_life_4(new_portal) without return types